/* 第一次加载时显示 */
.coder-appear {
    transform: translateX(-200px);
}

.coder-appear-active {
    transform: translateX(0);
    transition: all 2s ease-in;
}

/* 进入动画 */
.coder-enter {
    opacity: 0;
}

.coder-enter-active {
    opacity: 1;
    transition: all 2s ease-in;
}

/* 退出动画 */
.coder-exit {
    opacity: 1;
}

.coder-exit-active {
    opacity: 0;
    transition: all 2s ease-in;
}